Release Bearing

Revision as of 02:46, 28 April 2011; view current revision
<-Older revision | Newer revision->

The clutch Release Bearing is often called the throwout bearing and is operated by the clutch Release Lever.

Specifications

release bearing, throwout bearing

• Bore = 1.5748
• Outer Diameter = 2.8898
• Width = 0.752

Part Numbers

Bearing and spring are same: B110, B120, B210, B310 regardless of engine or transmission type. RHD and LHD are the same.

• 30502-21000 BEARING-CLUTCH RELEASE
  • SKF N2106,N3048 $32
  • BCA/National 01576 $21.89
  • Timken DNB01576C $22

Interchange

The bearing was originally designed for the Datsun 510 model series (part code 210), so fits many Datsuns, basically most RWD model with A-series, L-series, Z-series, KA-series or VG-series engines.

• 1971 - 1973 Datsun 1200
• 1974 - 1978 B210
• 1979 - 1982 B310
• 1977 - 1988 200SX
• 1989 - 1990 240SX
• 1994 - 1998 240SX
• 1975 - 1979 620 Pickup
• 1980 - 1986 720 Pickup L20B,Z-series
• 1986 - 1994 D21 Pickup
• 1995 Pickup
• 1987 - 1996 Pathfinder
• 1974 - 1977 710
• 1974 - 1976 Datsun 610
• 1977 - 1981 810 L24E, LD28
• 1970 - 1978 240Z, 260Z, 280Z
• 1979 - 1983 280ZX
• 1984 - 1989 300ZX VG30
• 1982 - 1984 Maxima
• 1978 - 1981 510
• 1987 - 1988 Van

Mechanical Clutch (RHD)

See main articles Release Lever and Clutch

Hydraulic Clutch (LHD)

See Hydraulic clutch

Bearing Sleeve

• 30501-H1000 SLEEVE-BEARING CLUTCH RELEASE B110
• 30501-H1000 SLEEVE-CLUTCH RELEASE B120 LB
• 30501-H5000 SLEEVE-CLUTCH RELEASE B120 SB, B210 F4W56A

For A-series engines, there are two lengths. One is 4.5 mm longer.

Discussion: Clutch Problems

When swapping transmissions and engines, you may need to use the longer Sleeve:

Or make your own longer sleeve.

Datsun Sleeve ID:

Differences

What determines whether you need to use the short or long bearing carrier?

• Flywheel?
• Transmission front case depth?
• Engine plate (or lack thereof)?

B110 uses no engine plate, only a dust cover as on the right:

Left: 5mm thick engine plate, used by B210 and later B120 (Datsun 1200 truck)

Part Numbers

• 30501-H1000 SLEEAVE-BEARING CLUTCH RELEASE B110
• 30501-H1000 SLEEVE-CLUTCH RELEASE B120 SB
• 30501-H5000 SLEEVE-CLUTCH RELEASE B120 LB
• 30501-H5000 SLEEVE-BEARING CLUTCH RELEASE B210 JDM A12
• 30501-H5000 SLEEVE-BEARING CLUTCH RELEASE B210 -0874 USA
• 30501-H1000 SLEEVE-BEARING CLUTCH RELEASE B210 0974-0177 USA
• 30501-H7000 SLEEVE-BEARING CLUTCH RELEASE B210 7607- JDM A14 F4W60L
• 30501-H7500 SLEEVE-BEARING CLUTCH RELEASE B210 -7606 JDM A14 F4W60L
• 30501-H7500 SLEEVE-BEARING CLUTCH RELEASE B210 0278- USA
• 30501-H5000 SLEEVE-BEARING CLUTCH RELEASE B310 56-series
• 30501-H7500 SLEEVE-BEARING CLUTCH RELEASE B310 60-series
• 30501-H8560 SLEEVE-BEARING CLUTCH RELEASE B310 A12/A13 5-speed 60 series JDM
• 30501-H5000 SLEEVE-CLUTCH RELEASE F4W56A
• 30501-H7500 SLEEVE-CLUTCH RELEASE FS5W60A, F4W60L
• 30501-H8560 SLEEVE-CLUTCH RELEASE JDM B310 A12 FS5W60(L?), A13 FS5W60A

63-Series Transmission

• 30501-K0500 A14 FS5W63A JDM
  • Z31 VG30T.MT.M5 from 0986